import java.util.Scanner;

public class Num {
    public static void main(String[] args) {
    while (true){
        Scanner scanner = new Scanner(System.in);
        int num = scanner.nextInt();
        if (num % 2 ==0){
            System.out.println("偶数");
        }else{
            System.out.println("奇数");
        }
    }
    }
}
